Enum JoinPlan 

pub enum JoinPlan {
    Leaf(LogicalOperator),
    HashJoin {
        keys: Vec<Expression>,
        left: Box<JoinPlan>,
        right: Box<JoinPlan>,
    },
    CrossProduct {
        left: Box<JoinPlan>,
        right: Box<JoinPlan>,
    },
}

A join plan tree representing how to combine scan operators.

Variants

Leaf(LogicalOperator)

A single leaf operator (ScanNode or ScanRel).

HashJoin

Hash join of two sub-plans with join keys.

Fields

keys: Vec<Expression>

left: Box<JoinPlan>

right: Box<JoinPlan>

CrossProduct

Cross product of two sub-plans.

Fields

left: Box<JoinPlan>

right: Box<JoinPlan>

Trait Implementations

impl Clone for JoinPlan

fn clone(&self) -> JoinPlan

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for JoinPlan

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.